Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fixed the refcount leak for PCI devices According to the comments on pcigetdomainbusandslot, it returns a PCI device with a refcount that increments after use. Therefore, the caller must decrement the reference count ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: afunix: Do not use GC if MSGPEEK occurred. Igor Ushakov reported that GC purged the receive queue of a live socket due to a race with MSGPEEK, with a fix provided. This is exactly the same issue that was previously fixed in the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drm/mcde: The reference count leak in mcdedsibind has been fixed. In every iteration of foreachavailablechildofnode, the reference counter of the previous node is decremented. However, there is no decrement when exiting the loop,...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: MIPS: Cavium-Octeon: The issue of missing nodeput in octeon2usbclocksstart has been fixed. We should call nodeput for the reference uctlnode returned by ofgetparent, as this will increase the refcount. Otherwise, there will be a...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Do not leak some plane state. Apparently, no one noticed that the mdp5 plane states are being leaked quite severely. This issue was addressed since we introduced the planestate-commit refcount mechanism a few years...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu: Fixed the refcount leak in armsmmudevice when armsmmurpmget fails. The armsmmurpmget function invokes pmruntimegetsync, which increases the refcount of “smmu”. This occurs even though the return value is less than...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: dpaa2-ptp: Fixed the refcount leak in dpaa2ptpprobe. This node pointer is returned by offindcompatiblenode, and the refcount is incremented. Calling ofnodeput helps to address the refcount leak issue...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: soc: brcmstb: pm-arm: Fixed bugs related to reference count leaks and iomem leaks. In brcmstbpmprobe, there are two types of leak bugs: 1 We need to add ofnodeput when foreachmatchingnode breaks. 2 We need to call iounmap for...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed the erefcnt leak in ext4xattrblockcachefind. Syzbot reports the following warning: ============================================ WARNING: CPU: 0, PID: 5075, at fs/mbcache.c:419, module mbcachedestroy+0x224/0x290. Linke...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: drm/meson: Fixed refcount bugs in mesonvpuhasavailableconnectors. In this function, there are two refcount leak bugs: 1 When breaking out of foreachendpointofnode, we need to call ofnodeput for the ‘ep’. 2 We should call...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ARM: zynq: Fixed a refcount leak in zynqearlyslcrinit. The function offindcompatiblenode returns a node pointer with the refcount incremented. We should use ofnodeput in the error handling path. Add ofnodeput to avoid the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ASoC: mt6797-mt6351 – Fixed the refcount leak in mt6797mt6351devprobe. The ofparsephandle function returns a node pointer with a refcount incremented. We should use ofnodeput on it when there is no longer a need for it. Add th...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ARM: The refcount leak in axxiabootsecondary has been fixed. The offindcompatiblenode function returns a node pointer with a refcount incremented. We should use ofnodeput on it after processing. Add ofnodeput to avoid the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: devlink: fixed the netns refcount leak in devlinknlcmdreload. While preparing my patch series that includes netns refcount tracking, I discovered bugs in devlinknlcmdreload. Some error paths failed to release the refcount for a...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ceph: The “use after free” error was caught by KASAN at the line cephbuffergetarg-xattrbuf;. This means that the reference count could not be incremented before the memory was freed. In the same file, in the handlecapgrant...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fpga: region: adding the owner module and taking its reference count The current implementation of the fpga region assumes that the low-level module registers a driver for the parent device and uses its owner pointer to take the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: power/reset: arm-versatile: The refcount leak in versatilerebootprobe has been fixed. The function offindmatchingnodeandmatch returns a node pointer with a refcount incremented. We should use ofnodeput on this pointer when it is ...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the file drivers/media/dvb-core/dmxdev.c within the Linux kernel, up to version 5.19.10, a use-after-free condition has occurred due to race conditions related to reference counts, affecting the functions dvbdemuxopen and dvbdmxdevrelease...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: In the net subsystem, for the dsa module, in the mv88e6xxx code path, there was a issue with the refcount leak in the mv88e6xxxmdiosregister function. The ofgetchildbyname function returns a node pointer whose refcount is...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: - clk: tegra: Fixed a refcount leak in tegra210clockinit. - offindmatchingnode returns a node pointer with a refcount incremented. We should use ofnodeput on it when there is no longer a need for it. - Added ofnodeput to avoid...